/*
 * Copyright 2009 Original Author(s)
 * 
 * This file is part of Kommando
 * 
 * Kommando is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 * 
 * Kommando is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 * 
 * You should have received a copy of the GNU General Public License
 * along with Kommando.  If not, see <http://www.gnu.org/licenses/>.
 */
package org.kommando.internal.objectsource;

import java.util.ArrayList;
import java.util.List;

import javax.swing.Icon;

import org.kommando.core.catalog.AbstractObjectSource;
import org.kommando.core.catalog.Catalog;
import org.kommando.core.catalog.CatalogObject;
import org.kommando.core.catalog.ObjectSource;
import org.kommando.core.catalog.SimpleCatalogObject;
import org.kommando.core.catalog.TextObject;

/**
 * {@link ObjectSource} that returns the internal elements of Kommando:
 * <ul>
 * <li>object sources</li>
 * </ul>
 * 
 * @author Peter de Bruycker
 */
public class InternalObjectSource extends AbstractObjectSource {

    private static final String ID = "kommando";

    private List<CatalogObject> objects = new ArrayList<CatalogObject>();

    @Override
    public String getDescription() {
        return "Internal elements";
    }

    @Override
    public Icon getIcon() {
        // TODO icon
        return null;
    }

    @Override
    public String getId() {
        return ID;
    }

    @Override
    public String getName() {
        return "Kommando";
    }

    public InternalObjectSource(Catalog catalog) {
        SimpleCatalogObject catalogCatalogObject = new SimpleCatalogObject("kommando:catalog", "Catalog", "The catalog");
        catalogCatalogObject.setExtension(Catalog.class, catalog);

        objects.add(catalogCatalogObject);
    }

    @Override
    public List<CatalogObject> getObjects() {
        return objects;
    }

    @Override
    public CatalogObject getObject(String id) {
        if (id.startsWith("text:")) {
            return new TextObject(id.substring(6));
        }
        return null;
    }

    @Override
    public List<CatalogObject> getChildren(CatalogObject object) {
        if (object.hasExtension(Catalog.class)) {
            List<CatalogObject> objects = new ArrayList<CatalogObject>();
            for (ObjectSource objectSource : object.getExtension(Catalog.class).getObjectSources()) {
                SimpleCatalogObject objectSourceObject = new SimpleCatalogObject("kommando:catalog:objectsource:" + objectSource.getId(), objectSource
                        .getName(), objectSource.getDescription(), objectSource.getIcon());
                objectSourceObject.setExtension(ObjectSource.class, objectSource);
                objects.add(objectSourceObject);
            }

            return objects;
        }

        if (object.hasExtension(ObjectSource.class)) {
            return object.getExtension(ObjectSource.class).getObjects();
        }

        return null;
    }

    @Override
    public boolean hasChildren(CatalogObject object) {
        return object.hasExtension(Catalog.class) || object.hasExtension(ObjectSource.class);
    }
}
